1239224 has 16 divisors (see below), whose sum is σ = 2655600. Its totient is φ = 531072.

The previous prime is 1239223. The next prime is 1239229. The reversal of 1239224 is 4229321.

It is a super-2 number, since 2×1239224² = 3071352244352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1239224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11009 + ... + 11120.

It is an arithmetic number, because the mean of its divisors is an integer number (165975).

2^1239224 is an apocalyptic number.

1239224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1239224 is an abundant number, since it is smaller than the sum of its proper divisors (1416376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1239224 is a wasteful number, since it uses less digits than its factorization.

1239224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22142 (or 22138 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 1239224 is about 1113.2043837499. The cubic root of 1239224 is about 107.4112915200.

The spelling of 1239224 in words is "one million, two hundred thirty-nine thousand, two hundred twenty-four".